x86, microcode: Move to a proper location

We've grown a bunch of microcode loader files all prefixed with
"microcode_". They should be under cpu/ because this is strictly
CPU-related functionality so do that and drop the prefix since they're
in their own directory now which gives that prefix. :)

While at it, drop MICROCODE_INTEL_LIB config item and stash the
functionality under CONFIG_MICROCODE_INTEL as it was its only user.
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>

arch/x86/Kconfig

@@ -1080,10 +1080,6 @@ config MICROCODE_OLD_INTERFACE
 	def_bool y
 	depends on MICROCODE
 
-config MICROCODE_INTEL_LIB
-	def_bool y
-	depends on MICROCODE_INTEL
-
 config MICROCODE_INTEL_EARLY
 	def_bool n
 

arch/x86/kernel/Makefile

@@ -91,15 +91,6 @@ obj-$(CONFIG_PARAVIRT_CLOCK)	+= pvclock.o
 
 obj-$(CONFIG_PCSPKR_PLATFORM)	+= pcspeaker.o
 
-obj-$(CONFIG_MICROCODE_EARLY)		+= microcode_core_early.o
-obj-$(CONFIG_MICROCODE_INTEL_EARLY)	+= microcode_intel_early.o
-obj-$(CONFIG_MICROCODE_INTEL_LIB)	+= microcode_intel_lib.o
-microcode-y				:= microcode_core.o
-microcode-$(CONFIG_MICROCODE_INTEL)	+= microcode_intel.o
-microcode-$(CONFIG_MICROCODE_AMD)	+= microcode_amd.o
-obj-$(CONFIG_MICROCODE_AMD_EARLY)	+= microcode_amd_early.o
-obj-$(CONFIG_MICROCODE)			+= microcode.o
-
 obj-$(CONFIG_X86_CHECK_BIOS_CORRUPTION) += check.o
 
 obj-$(CONFIG_SWIOTLB)			+= pci-swiotlb.o

arch/x86/kernel/cpu/Makefile

@@ -42,6 +42,7 @@ endif
 
 obj-$(CONFIG_X86_MCE)			+= mcheck/
 obj-$(CONFIG_MTRR)			+= mtrr/
+obj-$(CONFIG_MICROCODE)			+= microcode/
 
 obj-$(CONFIG_X86_LOCAL_APIC)		+= perfctr-watchdog.o perf_event_amd_ibs.o
 

arch/x86/kernel/cpu/microcode/Makefile

+microcode-y				:= core.o
+obj-$(CONFIG_MICROCODE)			+= microcode.o
+microcode-$(CONFIG_MICROCODE_INTEL)	+= intel.o intel_lib.o
+microcode-$(CONFIG_MICROCODE_AMD)	+= amd.o
+obj-$(CONFIG_MICROCODE_EARLY)		+= core_early.o
+obj-$(CONFIG_MICROCODE_INTEL_EARLY)	+= intel_early.o
+obj-$(CONFIG_MICROCODE_AMD_EARLY)	+= amd_early.o